Jessie J, Nicki Minaj, and Ariana Grande perform onstage at the 2014 American Music Awards at Nokia Theatre L.A. Live on November 23, 2014 in Los Angeles, California. (Photo by Kevin Winter/Getty Images)

Kevin Winter/Entertainment/Getty Images

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Ariana Grande performs onstage at the 2014 American Music Awards at Nokia Theatre L.A. Live on November 23, 2014 in Los Angeles, California. (Photo by Kevin Winter/Getty Images)

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Ariana Grande performs onstage at the 2014 American Music Awards at Nokia Theatre L.A. Live on November 23, 2014 in Los Angeles, California. (Photo by Kevin Winter/Getty Images)

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Ariana Grande performs onstage at the 2014 American Music Awards at Nokia Theatre L.A. Live on November 23, 2014 in Los Angeles, California. (Photo by Kevin Winter/Getty Images)

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Jennifer Lopez (L) and Iggy Azalea perform onstage at the 2014 American Music Awards at Nokia Theatre L.A. Live on November 23, 2014 in Los Angeles, California. (Photo by Kevin Winter/Getty Images)

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Taylor Swift at the 2014 American Music Awards at Nokia Theatre L.A. Live on November 23, 2014 in Los Angeles, California. (Photo by Kevin Winter/Getty Images)

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Taylor Swift at the 2014 American Music Awards at Nokia Theatre L.A. Live on November 23, 2014 in Los Angeles, California. (Photo by Kevin Winter/Getty Images)

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Selena Gomez performs onstage at the 2014 American Music Awards at Nokia Theatre L.A. Live on November 23, 2014 in Los Angeles, California. (Photo by Kevin Winter/Getty Images)

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Selena Gomez performs onstage at the 2014 American Music Awards at Nokia Theatre L.A. Live on November 23, 2014 in Los Angeles, California. (Photo by Kevin Winter/Getty Images)

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Selena Gomez performs onstage at the 2014 American Music Awards at Nokia Theatre L.A. Live on November 23, 2014 in Los Angeles, California. (Photo by Kevin Winter/Getty Images)

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Selena Gomez performs onstage at the 2014 American Music Awards at Nokia Theatre L.A. Live on November 23, 2014 in Los Angeles, California. (Photo by Kevin Winter/Getty Images)

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Selena Gomez performs onstage at the 2014 American Music Awards at Nokia Theatre L.A. Live on November 23, 2014 in Los Angeles, California. (Photo by Kevin Winter/Getty Images)

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Taylor Swift cries as Selena Gomez performs onstage at the 2014 American Music Awards at Nokia Theatre L.A. Live on November 23, 2014 in Los Angeles, California. (Courtesy of ABC)

Getty/ Courtesy of ABC

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Nicki Minaj performs onstage at the 2014 American Music Awards at Nokia Theatre L.A. Live on November 23, 2014 in Los Angeles, California. (Photo by Kevin Winter/Getty Images)

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Nicki Minaj performs onstage at the 2014 American Music Awards at Nokia Theatre L.A. Live on November 23, 2014 in Los Angeles, California. (Photo by Kevin Winter/Getty Images)

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Nicki Minaj performs onstage at the 2014 American Music Awards at Nokia Theatre L.A. Live on November 23, 2014 in Los Angeles, California. (Photo by Kevin Winter/Getty Images)

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Nicki Minaj performs onstage at the 2014 American Music Awards at Nokia Theatre L.A. Live on November 23, 2014 in Los Angeles, California. (Photo by Kevin Winter/Getty Images)

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Ariana Grande performs onstage at the 2014 American Music Awards at Nokia Theatre L.A. Live on November 23, 2014 in Los Angeles, California. (Photo by Kevin Winter/Getty Images)

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Ariana Grande performs onstage at the 2014 American Music Awards at Nokia Theatre L.A. Live on November 23, 2014 in Los Angeles, California. (Photo by Kevin Winter/Getty Images)

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The Weeknd (L) and Ariana Grande perform onstage at the 2014 American Music Awards at Nokia Theatre L.A. Live on November 23, 2014 in Los Angeles, California. (Photo by Kevin Winter/Getty Images)

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The Weeknd (L) and Ariana Grande perform onstage at the 2014 American Music Awards at Nokia Theatre L.A. Live on November 23, 2014 in Los Angeles, California. (Photo by Kevin Winter/Getty Images)

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Taylor Swift performs onstage at the 2014 American Music Awards at Nokia Theatre L.A. Live on November 23, 2014 in Los Angeles, California. (Photo by Kevin Winter/Getty Images)

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Taylor Swift performs onstage at the 2014 American Music Awards at Nokia Theatre L.A. Live on November 23, 2014 in Los Angeles, California. (Photo by Kevin Winter/Getty Images)

Photo by Kevin Winter/Entertainment/Getty Images

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Taylor Swift performs onstage at the 2014 American Music Awards at Nokia Theatre L.A. Live on November 23, 2014 in Los Angeles, California. (Photo by Kevin Winter/Getty Images)

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Taylor Swift performs onstage at the 2014 American Music Awards at Nokia Theatre L.A. Live on November 23, 2014 in Los Angeles, California. (Photo by Kevin Winter/Getty Images)

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Taylor Swift performs onstage at the 2014 American Music Awards at Nokia Theatre L.A. Live on November 23, 2014 in Los Angeles, California. (Photo by Kevin Winter/Getty Images)

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Iggy Azalea performs onstage at the 2014 American Music Awards at Nokia Theatre L.A. Live on November 23, 2014 in Los Angeles, California. (Photo by Kevin Winter/Getty Images)

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Iggy Azalea performs onstage at the 2014 American Music Awards at Nokia Theatre L.A. Live on November 23, 2014 in Los Angeles, California. (Photo by Kevin Winter/Getty Images)

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Harry Styles, Zayn Malik and Niall Horan of One Direction perform onstage at the 2014 American Music Awards at Nokia Theatre L.A. Live on November 23, 2014 in Los Angeles, California. (Photo by Kevin Winter/Getty Images)

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Fergie performs onstage at the 2014 American Music Awards at Nokia Theatre L.A. Live on November 23, 2014 in Los Angeles, California. (Photo by Kevin Winter/Getty Images)

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Fergie performs onstage at the 2014 American Music Awards at Nokia Theatre L.A. Live on November 23, 2014 in Los Angeles, California. (Photo by Kevin Winter/Getty Images)

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Christina Milian & Lil’ Wayne performs onstage at the 2014 American Music Awards at Nokia Theatre L.A. Live on November 23, 2014 in Los Angeles, California. (Photo by Kevin Winter/Getty Images)

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Christina Milian & Lil’ Wayne performs onstage at the 2014 American Music Awards at Nokia Theatre L.A. Live on November 23, 2014 in Los Angeles, California. (Photo by Kevin Winter/Getty Images)

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Khloe Kardashian, Kendall Jenner and Kylie Jenner speak onstage at the 2014 American Music Awards at Nokia Theatre L.A. Live on November 23, 2014 in Los Angeles, California. (Photo by Kevin Winter/Getty Images)

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Harry Styles, Niall Horan, Liam Payne, Zayn Malik and Louis Tomlinson of One Direction accept the Favorite Pop/Rock Band/Duo/Group award onstage at the 2014 American Music Awards at Nokia Theatre L.A. Live on November 23, 2014 in Los Angeles, California. (Photo by Kevin Winter/Getty Images)

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Liam Payne, Louis Tomlinson, Zayn Malik, Niall Horan, and Harry Styles of One Direction accept the Favorite Pop/Rock Album award for ‘Midnight Memories’ onstage at the 2014 American Music Awards at Nokia Theatre L.A. Live on November 23, 2014 in Los Angeles, California. (Photo by Kevin Winter/Getty Images)

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Iggy Azalea accepts the Favorite Rap/Hip-Hop Album award for ‘The New Classic’ onstage at the 2014 American Music Awards at Nokia Theatre L.A. Live on November 23, 2014 in Los Angeles, California. (Photo by Kevin Winter/Getty Images)

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Iggy Azalea accepts the Favorite Rap/Hip-Hop Artist award onstage at the 2014 American Music Awards at Nokia Theatre L.A. Live on November 23, 2014 in Los Angeles, California. (Photo by Kevin Winter/Getty Images)

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Lorde performs onstage at the 2014 American Music Awards at Nokia Theatre L.A. Live on November 23, 2014 in Los Angeles, California. (Photo by Kevin Winter/Getty Images)

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Lorde performs onstage at the 2014 American Music Awards at Nokia Theatre L.A. Live on November 23, 2014 in Los Angeles, California. (Photo by Kevin Winter/Getty Images)

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Lorde performs onstage at the 2014 American Music Awards at Nokia Theatre L.A. Live on November 23, 2014 in Los Angeles, California. (Photo by Kevin Winter/Getty Images)

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Sam Smith accepts the Favorite Pop/Rock Male Artist award onstage at the 2014 American Music Awards at Nokia Theatre L.A. Live on November 23, 2014 in Los Angeles, California. (Photo by Kevin Winter/Getty Images)

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Rita Ora (L) and actor Matthew Morrison speak onstage at the 2014 American Music Awards at Nokia Theatre L.A. Live on November 23, 2014 in Los Angeles, California. (Photo by Kevin Winter/Getty Images)

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Sam Smith performs onstage at the 2014 American Music Awards at Nokia Theatre L.A. Live on November 23, 2014 in Los Angeles, California. (Photo by Kevin Winter/Getty Images)

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ASAP Rocky performs onstage at the 2014 American Music Awards at Nokia Theatre L.A. Live on November 23, 2014 in Los Angeles, California. (Photo by Kevin Winter/Getty Images)

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Charli XCX performs onstage at the 2014 American Music Awards at Nokia Theatre L.A. Live on November 23, 2014 in Los Angeles, California. (Photo by Kevin Winter/Getty Images)

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Charli XCX performs onstage at the 2014 American Music Awards at Nokia Theatre L.A. Live on November 23, 2014 in Los Angeles, California. (Photo by Kevin Winter/Getty Images)

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Charli XCX performs onstage at the 2014 American Music Awards at Nokia Theatre L.A. Live on November 23, 2014 in Los Angeles, California. (Photo by Kevin Winter/Getty Images)

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Luke Bryan accepts the Favorite Country Male Artist award onstage at the 2014 American Music Awards at Nokia Theatre L.A. Live on November 23, 2014 in Los Angeles, California. (Photo by Kevin Winter/Getty Images)

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Ansel Elgort speaks onstage at the 2014 American Music Awards at Nokia Theatre L.A. Live on November 23, 2014 in Los Angeles, California. (Photo by Kevin Winter/Getty Images)

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Pitbull speaks onstage at the 2014 American Music Awards at Nokia Theatre L.A. Live on November 23, 2014 in Los Angeles, California. (Photo by Kevin Winter/Getty Image

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Nasri (L) of Magic! and Wyclef Jean perform onstage at the 2014 American Music Awards at Nokia Theatre L.A. Live on November 23, 2014 in Los Angeles, California. (Photo by Kevin Winter/Getty Images)

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Annalise Bishop (L) and actor Jamie Foxx speak onstage at the 2014 American Music Awards at Nokia Theatre L.A. Live on November 23, 2014 in Los Angeles, California. (Photo by Kevin Winter/Getty Images)

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Luke Hemmings of 5 Seconds of Summer performs onstage at the 2014 American Music Awards at Nokia Theatre L.A. Live on November 23, 2014 in Los Angeles, California. (Photo by Kevin Winter/Getty Images)

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Luke Hemmings of 5 Seconds of Summer performs onstage at the 2014 American Music Awards at Nokia Theatre L.A. Live on November 23, 2014 in Los Angeles, California. (Photo by Kevin Winter/Getty Images)

Kevin Winter/Entertainment/Getty Images

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Gavin DeGraw (L) and Becky G speak onstage at the 2014 American Music Awards at Nokia Theatre L.A. Live on November 23, 2014 in Los Angeles, California. (Photo by Kevin Winter/Getty Images)

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Dan Reynolds of music group Imagine Dragons performs onstage at the 2014 American Music Awards at Nokia Theatre L.A. Live on November 23, 2014 in Los Angeles, California. (Photo by Kevin Winter/Getty Images)

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Uzo Aduba (L) and Taylor Schilling speak onstage at the 2014 American Music Awards at Nokia Theatre L.A. Live on November 23, 2014 in Los Angeles, California. (Photo by Kevin Winter/Getty Images)

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Jhene Aiko (L) and Meghan Trainor speak onstage at the 2014 American Music Awards at Nokia Theatre L.A. Live on November 23, 2014 in Los Angeles, California. (Photo by Kevin Winter/Getty Images)

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Danai Gurira (L) and Lauren Cohan speak onstage at the 2014 American Music Awards at Nokia Theatre L.A. Live on November 23, 2014 in Los Angeles, California. (Photo by Kevin Winter/Getty Images)

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Taylor Swift & Jessie J at the 2014 American Music Awards at Nokia Theatre L.A. Live on November 23, 2014 in Los Angeles, California. (Courtesy of ABC)

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Nicki Minaj at the 2014 American Music Awards at Nokia Theatre L.A. Live on November 23, 2014 in Los Angeles, California. (Courtesy of Instagram)

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Jennifer Lopez at the 2014 American Music Awards at Nokia Theatre L.A. Live on November 23, 2014 in Los Angeles, California. (Courtesy of Instagram)

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One Direction & Heidi Klum at the 2014 American Music Awards at Nokia Theatre L.A. Live on November 23, 2014 in Los Angeles, California. (Courtesy of Instagram)

fergie-taylor-wsift-karlie-kloss-amas-backstage

Taylor Swift, Fergie & Karlie Kloss at the 2014 American Music Awards at Nokia Theatre L.A. Live on November 23, 2014 in Los Angeles, California. (Courtesy of Instagram)

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Iggy Azalea at the 2014 American Music Awards at Nokia Theatre L.A. Live on November 23, 2014 in Los Angeles, California. (Courtesy of Instagram)